I have been using this Delta Uniguard blade guard that I adapted to accommodate a dust hose for about 15 years. After cutting the hole, I experimented with several different adhesives to hold the black collar onto the lexan/lucite top only to have it last for a year at the most before letting go. I think I have re-glued it 10 times.
It occurred to me that someone else might have tried to adapt a Uniguard overarm blade guard to allow for dust collection at the blade. Perhaps a technique that doesn’t require serial gluing.